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Revision 1.102 by root, Wed Jan 18 10:31:37 2006 UTC vs.
Revision 1.149 by root, Sun Dec 3 23:03:52 2006 UTC

17 17
18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test 18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19 19
20=head1 DESCRIPTION 20=head1 DESCRIPTION
21 21
22Everytime a terminal object gets created, extension scripts specified via 22Every time a terminal object gets created, extension scripts specified via
23the C<perl> resource are loaded and associated with it. 23the C<perl> resource are loaded and associated with it.
24 24
25Scripts are compiled in a 'use strict' and 'use utf8' environment, and 25Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26thus must be encoded as UTF-8. 26thus must be encoded as UTF-8.
27 27
34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35 35
36You can activate them like this: 36You can activate them like this:
37 37
38 @@RXVT_NAME@@ -pe <extensionname> 38 @@RXVT_NAME@@ -pe <extensionname>
39
40Or by adding them to the resource for extensions loaded by default:
41
42 URxvt.perl-ext-common: default,automove-background,selection-autotransform
39 43
40=over 4 44=over 4
41 45
42=item selection (enabled by default) 46=item selection (enabled by default)
43 47
58 URxvt.selection.pattern-1: perl-regex 62 URxvt.selection.pattern-1: perl-regex
59 ... 63 ...
60 64
61The index number (0, 1...) must not have any holes, and each regex must 65The index number (0, 1...) must not have any holes, and each regex must
62contain at least one pair of capturing parentheses, which will be used for 66contain at least one pair of capturing parentheses, which will be used for
63the match. For example, the followign adds a regex that matches everything 67the match. For example, the following adds a regex that matches everything
64between two vertical bars: 68between two vertical bars:
65 69
66 URxvt.selection.pattern-0: \\|([^|]+)\\| 70 URxvt.selection.pattern-0: \\|([^|]+)\\|
71
72Another example: Programs I use often output "absolute path: " at the
73beginning of a line when they process multiple files. The following
74pattern matches the filename (note, there is a single space at the very
75end):
76
77 URxvt.selection.pattern-0: ^(/[^:]+):\
67 78
68You can look at the source of the selection extension to see more 79You can look at the source of the selection extension to see more
69interesting uses, such as parsing a line from beginning to end. 80interesting uses, such as parsing a line from beginning to end.
70 81
71This extension also offers following bindable keyboard commands: 82This extension also offers following bindable keyboard commands:
83=item option-popup (enabled by default) 94=item option-popup (enabled by default)
84 95
85Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at 96Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
86runtime. 97runtime.
87 98
99Other extensions can extend this popup menu by pushing a code reference
100onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
101popup is being displayed.
102
103It's sole argument is the popup menu, which can be modified. It should
104either return nothing or a string, the initial boolean value and a code
105reference. The string will be used as button text and the code reference
106will be called when the toggle changes, with the new boolean value as
107first argument.
108
109The following will add an entry C<myoption> that changes
110C<$self->{myoption}>:
111
112 push @{ $self->{term}{option_popup_hook} }, sub {
113 ("my option" => $myoption, sub { $self->{myoption} = $_[0] })
114 };
115
88=item selection-popup (enabled by default) 116=item selection-popup (enabled by default)
89 117
90Binds a popup menu to Ctrl-Button3 that lets you convert the selection 118Binds a popup menu to Ctrl-Button3 that lets you convert the selection
91text into various other formats/action (such as uri unescaping, perl 119text into various other formats/action (such as uri unescaping, perl
92evalution, web-browser starting etc.), depending on content. 120evaluation, web-browser starting etc.), depending on content.
93 121
94Other extensions can extend this popup menu by pushing a code reference onto 122Other extensions can extend this popup menu by pushing a code reference
95C<@urxvt::ext::selection_popup::hook>, that is called whenever the popup is displayed. 123onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
124popup is being displayed.
96 125
97It's sole argument is the popup menu, which can be modified. The selection 126It's sole argument is the popup menu, which can be modified. The selection
98is in C<$_>, which can be used to decide wether to add something or not. 127is in C<$_>, which can be used to decide whether to add something or not.
99It should either return nothing or a string and a code reference. The 128It should either return nothing or a string and a code reference. The
100string will be used as button text and the code reference will be called 129string will be used as button text and the code reference will be called
101when the button gets activated and should transform C<$_>. 130when the button gets activated and should transform C<$_>.
102 131
103The following will add an entry C<a to b> that transforms all C<a>s in 132The following will add an entry C<a to b> that transforms all C<a>s in
104the selection to C<b>s, but only if the selection currently contains any 133the selection to C<b>s, but only if the selection currently contains any
105C<a>s: 134C<a>s:
106 135
107 push urxvt::ext::selection_popup::hook, sub { 136 push @{ $self->{term}{selection_popup_hook} }, sub {
108 /a/ ? ("a to be" => sub { s/a/b/g } 137 /a/ ? ("a to be" => sub { s/a/b/g }
109 : () 138 : ()
110 }; 139 };
111 140
112=item searchable-scrollback<hotkey> (enabled by default) 141=item searchable-scrollback<hotkey> (enabled by default)
122bottom. C<Escape> leaves search mode and returns to the point where search 151bottom. C<Escape> leaves search mode and returns to the point where search
123was started, while C<Enter> or C<Return> stay at the current position and 152was started, while C<Enter> or C<Return> stay at the current position and
124additionally stores the first match in the current line into the primary 153additionally stores the first match in the current line into the primary
125selection. 154selection.
126 155
156The regex defaults to "(?i)", resulting in a case-insensitive search. To
157get a case-sensitive search you can delete this prefix using C<BackSpace>
158or simply use an uppercase character which removes the "(?i)" prefix.
159
160See L<perlre> for more info about perl regular expression syntax.
161
162=item readline (enabled by default)
163
164A support package that tries to make editing with readline easier. At
165the moment, it reacts to clicking shift-left mouse button by trying to
166move the text cursor to this position. It does so by generating as many
167cursor-left or cursor-right keypresses as required (the this only works
168for programs that correctly support wide characters).
169
170To avoid too many false positives, this is only done when:
171
172=over 4
173
174=item - the tty is in ICANON state.
175
176=item - the text cursor is visible.
177
178=item - the primary screen is currently being displayed.
179
180=item - the mouse is on the same (multi-row-) line as the text cursor.
181
182=back
183
184The normal selection mechanism isn't disabled, so quick successive clicks
185might interfere with selection creation in harmless ways.
186
127=item selection-autotransform 187=item selection-autotransform
128 188
129This selection allows you to do automatic transforms on a selection 189This selection allows you to do automatic transforms on a selection
130whenever a selection is made. 190whenever a selection is made.
131 191
143 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ 203 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
144 204
145And this example matches the same,but replaces it with vi-commands you can 205And this example matches the same,but replaces it with vi-commands you can
146paste directly into your (vi :) editor: 206paste directly into your (vi :) editor:
147 207
148 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/ 208 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
149 209
150Of course, this can be modified to suit your needs and your editor :) 210Of course, this can be modified to suit your needs and your editor :)
151 211
152To expand the example above to typical perl error messages ("XXX at 212To expand the example above to typical perl error messages ("XXX at
153FILENAME line YYY."), you need a slightly more elaborate solution: 213FILENAME line YYY."), you need a slightly more elaborate solution:
154 214
155 URxvt.selection.pattern-0: ( at .*? line \\d+\\.) 215 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
156 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/ 216 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
157 217
158The first line tells the selection code to treat the unchanging part of 218The first line tells the selection code to treat the unchanging part of
159every error message as a selection pattern, and the second line transforms 219every error message as a selection pattern, and the second line transforms
160the message into vi commands to load the file. 220the message into vi commands to load the file.
161 221
162=item mark-urls 222=item tabbed
163 223
224This transforms the terminal into a tabbar with additional terminals, that
225is, it implements what is commonly referred to as "tabbed terminal". The topmost line
226displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
227button per tab.
228
229Clicking a button will activate that tab. Pressing B<Shift-Left> and
230B<Shift-Right> will switch to the tab left or right of the current one,
231while B<Shift-Down> creates a new tab.
232
233The tabbar itself can be configured similarly to a normal terminal, but
234with a resource class of C<URxvt.tabbed>. In addition, it supports the
235following four resources (shown with defaults):
236
237 URxvt.tabbed.tabbar-fg: <colour-index, default 3>
238 URxvt.tabbed.tabbar-bg: <colour-index, default 0>
239 URxvt.tabbed.tab-fg: <colour-index, default 0>
240 URxvt.tabbed.tab-bg: <colour-index, default 1>
241
242See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
243indices.
244
245=item matcher
246
164Uses per-line display filtering (C<on_line_update>) to underline urls and 247Uses per-line display filtering (C<on_line_update>) to underline text
165make them clickable. When middle-clicked, the program specified in the 248matching a certain pattern and make it clickable. When clicked with the
166resource C<urlLauncher> (default C<x-www-browser>) will be started with 249mouse button specified in the C<matcher.button> resource (default 2, or
167the URL as first argument. 250middle), the program specified in the C<matcher.launcher> resource
251(default, the C<urlLauncher> resource, C<sensible-browser>) will be started
252with the matched text as first argument. The default configuration is
253suitable for matching URLs and launching a web browser, like the
254former "mark-urls" extension.
255
256The default pattern to match URLs can be overridden with the
257C<matcher.pattern.0> resource, and additional patterns can be specified
258with numbered patterns, in a manner similar to the "selection" extension.
259The launcher can also be overridden on a per-pattern basis.
260
261Example configuration:
262
263 URxvt.perl-ext: default,matcher
264 URxvt.urlLauncher: sensible-browser
265 URxvt.matcher.button: 1
266 URxvt.matcher.pattern.1: \\bwww\\.[\\w-]+\\.[\\w./?&@#-]*[\\w/-]
267 URxvt.matcher.pattern.2: \\B(/\\S+?):(\\d+)(?=:|$)
268 URxvt.matcher.launcher.2: gvim +$2 $1
269
270=item xim-onthespot
271
272This (experimental) perl extension implements OnTheSpot editing. It does
273not work perfectly, and some input methods don't seem to work well with
274OnTheSpot editing in general, but it seems to work at leats for SCIM and
275kinput2.
276
277You enable it by specifying this extension and a preedit style of
278C<OnTheSpot>, i.e.:
279
280 @@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
281
282=item kuake<hotkey>
283
284A very primitive quake-console-like extension. It was inspired by a
285description of how the programs C<kuake> and C<yakuake> work: Whenever the
286user presses a global accelerator key (by default C<F10>), the terminal
287will show or hide itself. Another press of the accelerator key will hide
288or show it again.
289
290Initially, the window will not be shown when using this extension.
291
292This is useful if you need a single terminal thats not using any desktop
293space most of the time but is quickly available at the press of a key.
294
295The accelerator key is grabbed regardless of any modifiers, so this
296extension will actually grab a physical key just for this function.
297
298If you want a quake-like animation, tell your window manager to do so
299(fvwm can do it).
300
301=item automove-background
302
303This is basically a very small extension that dynamically changes the
304background pixmap offset to the window position, in effect creating the
305same effect as pseudo transparency with a custom pixmap. No scaling is
306supported in this mode. Example:
307
308 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
168 309
169=item block-graphics-to-ascii 310=item block-graphics-to-ascii
170 311
171A not very useful example of filtering all text output to the terminal, 312A not very useful example of filtering all text output to the terminal
172by replacing all line-drawing characters (U+2500 .. U+259F) by a 313by replacing all line-drawing characters (U+2500 .. U+259F) by a
173similar-looking ascii character. 314similar-looking ascii character.
174 315
175=item digital-clock 316=item digital-clock
176 317
177Displays a digital clock using the built-in overlay. 318Displays a digital clock using the built-in overlay.
178 319
179=item example-refresh-hooks 320=item remote-clipboard
180 321
181Displays a very simple digital clock in the upper right corner of the 322Somewhat of a misnomer, this extension adds two menu entries to the
182window. Illustrates overwriting the refresh callbacks to create your own 323selection popup that allows one ti run external commands to store the
183overlays or changes. 324selection somewhere and fetch it again.
325
326We use it to implement a "distributed selection mechanism", which just
327means that one command uploads the file to a remote server, and another
328reads it.
329
330The commands can be set using the C<URxvt.remote-selection.store> and
331C<URxvt.remote-selection.fetch> resources. The first should read the
332selection to store from STDIN (always in UTF-8), the second should provide
333the selection data on STDOUT (also in UTF-8).
334
335The defaults (which are likely useless to you) use rsh and cat:
336
337 URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
338 URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
184 339
185=item selection-pastebin 340=item selection-pastebin
186 341
187This is a little rarely useful extension that Uploads the selection as 342This is a little rarely useful extension that Uploads the selection as
188textfile to a remote site (or does other things). (The implementation is 343textfile to a remote site (or does other things). (The implementation is
208After a successful upload the selection will be replaced by the text given 363After a successful upload the selection will be replaced by the text given
209in the C<selection-pastebin-url> resource (again, the % is the placeholder 364in the C<selection-pastebin-url> resource (again, the % is the placeholder
210for the filename): 365for the filename):
211 366
212 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/% 367 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
368
369I<Note to xrdb users:> xrdb uses the C preprocessor, which might interpret
370the double C</> characters as comment start. Use C<\057\057> instead,
371which works regardless of wether xrdb is used to parse the resource file
372or not.
373
374=item example-refresh-hooks
375
376Displays a very simple digital clock in the upper right corner of the
377window. Illustrates overwriting the refresh callbacks to create your own
378overlays or changes.
213 379
214=back 380=back
215 381
216=head1 API DOCUMENTATION 382=head1 API DOCUMENTATION
217 383
251 417
252=back 418=back
253 419
254=head2 Extension Objects 420=head2 Extension Objects
255 421
256Very perl extension is a perl class. A separate perl object is created 422Every perl extension is a perl class. A separate perl object is created
257for each terminal and each extension and passed as the first parameter to 423for each terminal, and each terminal has its own set of extenion objects,
258hooks. So extensions can use their C<$self> object without having to think 424which are passed as the first parameter to hooks. So extensions can use
259about other extensions, with the exception of methods and members that 425their C<$self> object without having to think about clashes with other
426extensions or other terminals, with the exception of methods and members
260begin with an underscore character C<_>: these are reserved for internal 427that begin with an underscore character C<_>: these are reserved for
261use. 428internal use.
262 429
263Although it isn't a C<urxvt::term> object, you can call all methods of the 430Although it isn't a C<urxvt::term> object, you can call all methods of the
264C<urxvt::term> class on this object. 431C<urxvt::term> class on this object.
265 432
266It has the following methods and data members: 433It has the following methods and data members:
287=head2 Hooks 454=head2 Hooks
288 455
289The following subroutines can be declared in extension files, and will be 456The following subroutines can be declared in extension files, and will be
290called whenever the relevant event happens. 457called whenever the relevant event happens.
291 458
292The first argument passed to them is an extension oject as described in 459The first argument passed to them is an extension object as described in
293the in the C<Extension Objects> section. 460the in the C<Extension Objects> section.
294 461
295B<All> of these hooks must return a boolean value. If it is true, then the 462B<All> of these hooks must return a boolean value. If any of the called
296event counts as being I<consumed>, and the invocation of other hooks is 463hooks returns true, then the event counts as being I<consumed>, and the
297skipped, and the relevant action might not be carried out by the C++ code. 464relevant action might not be carried out by the C++ code.
298 465
299I<< When in doubt, return a false value (preferably C<()>). >> 466I<< When in doubt, return a false value (preferably C<()>). >>
300 467
301=over 4 468=over 4
302 469
303=item on_init $term 470=item on_init $term
304 471
305Called after a new terminal object has been initialized, but before 472Called after a new terminal object has been initialized, but before
306windows are created or the command gets run. Most methods are unsafe to 473windows are created or the command gets run. Most methods are unsafe to
307call or deliver senseless data, as terminal size and other characteristics 474call or deliver senseless data, as terminal size and other characteristics
308have not yet been determined. You can safely query and change resources, 475have not yet been determined. You can safely query and change resources
309though. 476and options, though. For many purposes the C<on_start> hook is a better
477place.
478
479=item on_start $term
480
481Called at the very end of initialisation of a new terminal, just before
482trying to map (display) the toplevel and returning to the main loop.
483
484=item on_destroy $term
485
486Called whenever something tries to destroy terminal, when the terminal is
487still fully functional (not for long, though).
310 488
311=item on_reset $term 489=item on_reset $term
312 490
313Called after the screen is "reset" for any reason, such as resizing or 491Called after the screen is "reset" for any reason, such as resizing or
314control sequences. Here is where you can react on changes to size-related 492control sequences. Here is where you can react on changes to size-related
315variables. 493variables.
316 494
317=item on_start $term 495=item on_child_start $term, $pid
318 496
319Called at the very end of initialisation of a new terminal, just before 497Called just after the child process has been C<fork>ed.
320returning to the mainloop. 498
499=item on_child_exit $term, $status
500
501Called just after the child process has exited. C<$status> is the status
502from C<waitpid>.
321 503
322=item on_sel_make $term, $eventtime 504=item on_sel_make $term, $eventtime
323 505
324Called whenever a selection has been made by the user, but before the 506Called whenever a selection has been made by the user, but before the
325selection text is copied, so changes to the beginning, end or type of the 507selection text is copied, so changes to the beginning, end or type of the
332 514
333Called whenever a selection has been copied, but before the selection is 515Called whenever a selection has been copied, but before the selection is
334requested from the server. The selection text can be queried and changed 516requested from the server. The selection text can be queried and changed
335by calling C<< $term->selection >>. 517by calling C<< $term->selection >>.
336 518
337Returning a true value aborts selection grabbing. It will still be hilighted. 519Returning a true value aborts selection grabbing. It will still be highlighted.
338 520
339=item on_sel_extend $term 521=item on_sel_extend $term
340 522
341Called whenever the user tries to extend the selection (e.g. with a double 523Called whenever the user tries to extend the selection (e.g. with a double
342click) and is either supposed to return false (normal operation), or 524click) and is either supposed to return false (normal operation), or
343should extend the selection itelf and return true to suppress the built-in 525should extend the selection itself and return true to suppress the built-in
344processing. This can happen multiple times, as long as the callback 526processing. This can happen multiple times, as long as the callback
345returns true, it will be called on every further click by the user and is 527returns true, it will be called on every further click by the user and is
346supposed to enlarge the selection more and more, if possible. 528supposed to enlarge the selection more and more, if possible.
347 529
348See the F<selection> example extension. 530See the F<selection> example extension.
349 531
350=item on_view_change $term, $offset 532=item on_view_change $term, $offset
351 533
352Called whenever the view offset changes, i..e the user or program 534Called whenever the view offset changes, i.e. the user or program
353scrolls. Offset C<0> means display the normal terminal, positive values 535scrolls. Offset C<0> means display the normal terminal, positive values
354show this many lines of scrollback. 536show this many lines of scrollback.
355 537
356=item on_scroll_back $term, $lines, $saved 538=item on_scroll_back $term, $lines, $saved
357 539
361 543
362It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 544It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
363$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 545$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
364number of lines that will be in the scrollback buffer. 546number of lines that will be in the scrollback buffer.
365 547
548=item on_osc_seq $term, $op, $args
549
550Called on every OSC sequence and can be used to suppress it or modify its
551behaviour. The default should be to return an empty list. A true value
552suppresses execution of the request completely. Make sure you don't get
553confused by recursive invocations when you output an osc sequence within
554this callback.
555
556C<on_osc_seq_perl> should be used for new behaviour.
557
366=item on_osc_seq $term, $string 558=item on_osc_seq_perl $term, $string
367 559
368Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 560Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
369operating system command) is processed. Cursor position and other state 561operating system command) is processed. Cursor position and other state
370information is up-to-date when this happens. For interoperability, the 562information is up-to-date when this happens. For interoperability, the
371string should start with the extension name and a colon, to distinguish 563string should start with the extension name and a colon, to distinguish
372it from commands for other extensions, and this might be enforced in the 564it from commands for other extensions, and this might be enforced in the
373future. 565future.
374 566
375Be careful not ever to trust (in a security sense) the data you receive, 567Be careful not ever to trust (in a security sense) the data you receive,
376as its source can not easily be controleld (e-mail content, messages from 568as its source can not easily be controlled (e-mail content, messages from
377other users on the same system etc.). 569other users on the same system etc.).
378 570
379=item on_add_lines $term, $string 571=item on_add_lines $term, $string
380 572
381Called whenever text is about to be output, with the text as argument. You 573Called whenever text is about to be output, with the text as argument. You
412 604
413=item on_refresh_end $term 605=item on_refresh_end $term
414 606
415Called just after the screen gets redrawn. See C<on_refresh_begin>. 607Called just after the screen gets redrawn. See C<on_refresh_begin>.
416 608
417=item on_keyboard_command $term, $string 609=item on_user_command $term, $string
418 610
419Called whenever the user presses a key combination that has a 611Called whenever a user-configured event is being activated (e.g. via
420C<perl:string> action bound to it (see description of the B<keysym> 612a C<perl:string> action bound to a key, see description of the B<keysym>
421resource in the @@RXVT_NAME@@(1) manpage). 613resource in the @@RXVT_NAME@@(1) manpage).
614
615The event is simply the action string. This interface is assumed to change
616slightly in the future.
617
618=item on_resize_all_windows $tern, $new_width, $new_height
619
620Called just after the new window size has been calculated, but before
621windows are actually being resized or hints are being set. If this hook
622returns TRUE, setting of the window hints is being skipped.
422 623
423=item on_x_event $term, $event 624=item on_x_event $term, $event
424 625
425Called on every X event received on the vt window (and possibly other 626Called on every X event received on the vt window (and possibly other
426windows). Should only be used as a last resort. Most event structure 627windows). Should only be used as a last resort. Most event structure
427members are not passed. 628members are not passed.
428 629
630=item on_root_event $term, $event
631
632Like C<on_x_event>, but is called for events on the root window.
633
429=item on_focus_in $term 634=item on_focus_in $term
430 635
431Called whenever the window gets the keyboard focus, before rxvt-unicode 636Called whenever the window gets the keyboard focus, before rxvt-unicode
432does focus in processing. 637does focus in processing.
433 638
434=item on_focus_out $term 639=item on_focus_out $term
435 640
436Called wheneever the window loses keyboard focus, before rxvt-unicode does 641Called whenever the window loses keyboard focus, before rxvt-unicode does
437focus out processing. 642focus out processing.
438 643
439=item on_configure_notify $term, $event 644=item on_configure_notify $term, $event
645
646=item on_property_notify $term, $event
440 647
441=item on_key_press $term, $event, $keysym, $octets 648=item on_key_press $term, $event, $keysym, $octets
442 649
443=item on_key_release $term, $event, $keysym 650=item on_key_release $term, $event, $keysym
444 651
454 661
455Called whenever the corresponding X event is received for the terminal If 662Called whenever the corresponding X event is received for the terminal If
456the hook returns true, then the even will be ignored by rxvt-unicode. 663the hook returns true, then the even will be ignored by rxvt-unicode.
457 664
458The event is a hash with most values as named by Xlib (see the XEvent 665The event is a hash with most values as named by Xlib (see the XEvent
459manpage), with the additional members C<row> and C<col>, which are the row 666manpage), with the additional members C<row> and C<col>, which are the
460and column under the mouse cursor. 667(real, not screen-based) row and column under the mouse cursor.
461 668
462C<on_key_press> additionally receives the string rxvt-unicode would 669C<on_key_press> additionally receives the string rxvt-unicode would
463output, if any, in locale-specific encoding. 670output, if any, in locale-specific encoding.
464 671
465subwindow. 672subwindow.
673
674=item on_client_message $term, $event
675
676=item on_wm_protocols $term, $event
677
678=item on_wm_delete_window $term, $event
679
680Called when various types of ClientMessage events are received (all with
681format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
466 682
467=back 683=back
468 684
469=cut 685=cut
470 686
476use Scalar::Util (); 692use Scalar::Util ();
477use List::Util (); 693use List::Util ();
478 694
479our $VERSION = 1; 695our $VERSION = 1;
480our $TERM; 696our $TERM;
697our @TERM_INIT;
698our @TERM_EXT;
481our @HOOKNAME; 699our @HOOKNAME;
482our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 700our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
483our %OPTION; 701our %OPTION;
484 702
485our $LIBDIR; 703our $LIBDIR;
486our $RESNAME; 704our $RESNAME;
487our $RESCLASS; 705our $RESCLASS;
488our $RXVTNAME; 706our $RXVTNAME;
489 707
708our $NOCHAR = chr 0xffff;
709
490=head2 Variables in the C<urxvt> Package 710=head2 Variables in the C<urxvt> Package
491 711
492=over 4 712=over 4
493 713
494=item $urxvt::LIBDIR 714=item $urxvt::LIBDIR
506 726
507=item $urxvt::TERM 727=item $urxvt::TERM
508 728
509The current terminal. This variable stores the current C<urxvt::term> 729The current terminal. This variable stores the current C<urxvt::term>
510object, whenever a callback/hook is executing. 730object, whenever a callback/hook is executing.
731
732=item @urxvt::TERM_INIT
733
734All code references in this array will be called as methods of the next newly
735created C<urxvt::term> object (during the C<on_init> phase). The array
736gets cleared before the code references that were in it are being executed,
737so references can push themselves onto it again if they so desire.
738
739This complements to the perl-eval command line option, but gets executed
740first.
741
742=item @urxvt::TERM_EXT
743
744Works similar to C<@TERM_INIT>, but contains perl package/class names, which
745get registered as normal extensions after calling the hooks in C<@TERM_INIT>
746but before other extensions. Gets cleared just like C<@TERM_INIT>.
511 747
512=back 748=back
513 749
514=head2 Functions in the C<urxvt> Package 750=head2 Functions in the C<urxvt> Package
515 751
529 765
530Using this function has the advantage that its output ends up in the 766Using this function has the advantage that its output ends up in the
531correct place, e.g. on stderr of the connecting urxvtc client. 767correct place, e.g. on stderr of the connecting urxvtc client.
532 768
533Messages have a size limit of 1023 bytes currently. 769Messages have a size limit of 1023 bytes currently.
770
771=item @terms = urxvt::termlist
772
773Returns all urxvt::term objects that exist in this process, regardless of
774whether they are started, being destroyed etc., so be careful. Only term
775objects that have perl extensions attached will be returned (because there
776is no urxvt::term objet associated with others).
534 777
535=item $time = urxvt::NOW 778=item $time = urxvt::NOW
536 779
537Returns the "current time" (as per the event loop). 780Returns the "current time" (as per the event loop).
538 781
596Return the foreground/background colour index, respectively. 839Return the foreground/background colour index, respectively.
597 840
598=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour 841=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
599 842
600=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour 843=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
844
845=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
601 846
602Replace the foreground/background colour in the rendition mask with the 847Replace the foreground/background colour in the rendition mask with the
603specified one. 848specified one.
604 849
605=item $value = urxvt::GET_CUSTOM $rend 850=item $value = urxvt::GET_CUSTOM $rend
622 my $msg = join "", @_; 867 my $msg = join "", @_;
623 $msg .= "\n" 868 $msg .= "\n"
624 unless $msg =~ /\n$/; 869 unless $msg =~ /\n$/;
625 urxvt::warn ($msg); 870 urxvt::warn ($msg);
626 }; 871 };
627
628 # %ENV is the original startup environment
629 delete $ENV{IFS};
630 delete $ENV{CDPATH};
631 delete $ENV{BASH_ENV};
632 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
633} 872}
873
874no warnings 'utf8';
634 875
635my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 876my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
636 877
637sub verbose { 878sub verbose {
638 my ($level, $msg) = @_; 879 my ($level, $msg) = @_;
642my %extension_pkg; 883my %extension_pkg;
643 884
644# load a single script into its own package, once only 885# load a single script into its own package, once only
645sub extension_package($) { 886sub extension_package($) {
646 my ($path) = @_; 887 my ($path) = @_;
647
648 no strict 'refs';
649 888
650 $extension_pkg{$path} ||= do { 889 $extension_pkg{$path} ||= do {
651 $path =~ /([^\/\\]+)$/; 890 $path =~ /([^\/\\]+)$/;
652 my $pkg = $1; 891 my $pkg = $1;
653 $pkg =~ s/[^[:word:]]/_/g; 892 $pkg =~ s/[^[:word:]]/_/g;
656 verbose 3, "loading extension '$path' into package '$pkg'"; 895 verbose 3, "loading extension '$path' into package '$pkg'";
657 896
658 open my $fh, "<:raw", $path 897 open my $fh, "<:raw", $path
659 or die "$path: $!"; 898 or die "$path: $!";
660 899
661 @{"$pkg\::ISA"} = urxvt::term::extension::;
662
663 my $source = 900 my $source =
664 "package $pkg; use strict; use utf8;\n" 901 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
665 . "#line 1 \"$path\"\n{\n" 902 . "#line 1 \"$path\"\n{\n"
666 . (do { local $/; <$fh> }) 903 . (do { local $/; <$fh> })
667 . "\n};\n1"; 904 . "\n};\n1";
668 905
669 eval $source 906 eval $source
683 if ($htype == 0) { # INIT 920 if ($htype == 0) { # INIT
684 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 921 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
685 922
686 my %ext_arg; 923 my %ext_arg;
687 924
925 {
926 my @init = @TERM_INIT;
927 @TERM_INIT = ();
928 $_->($TERM) for @init;
929 my @pkg = @TERM_EXT;
930 @TERM_EXT = ();
931 $TERM->register_package ($_) for @pkg;
932 }
933
688 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 934 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
689 if ($_ eq "default") { 935 if ($_ eq "default") {
690 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 936 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
691 } elsif (/^-(.*)$/) { 937 } elsif (/^-(.*)$/) {
692 delete $ext_arg{$1}; 938 delete $ext_arg{$1};
693 } elsif (/^([^<]+)<(.*)>$/) { 939 } elsif (/^([^<]+)<(.*)>$/) {
694 push @{ $ext_arg{$1} }, $2; 940 push @{ $ext_arg{$1} }, $2;
695 } else { 941 } else {
696 $ext_arg{$_} ||= []; 942 $ext_arg{$_} ||= [];
697 } 943 }
698 } 944 }
699 945
700 while (my ($ext, $argv) = each %ext_arg) { 946 for my $ext (sort keys %ext_arg) {
701 my @files = grep -f $_, map "$_/$ext", @dirs; 947 my @files = grep -f $_, map "$_/$ext", @dirs;
702 948
703 if (@files) { 949 if (@files) {
704 $TERM->register_package (extension_package $files[0], $argv); 950 $TERM->register_package (extension_package $files[0], $ext_arg{$ext});
705 } else { 951 } else {
706 warn "perl extension '$ext' not found in perl library search path\n"; 952 warn "perl extension '$ext' not found in perl library search path\n";
707 } 953 }
708 } 954 }
709 955
715 961
716 if (my $cb = $TERM->{_hook}[$htype]) { 962 if (my $cb = $TERM->{_hook}[$htype]) {
717 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 963 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
718 if $verbosity >= 10; 964 if $verbosity >= 10;
719 965
720 keys %$cb; 966 for my $pkg (keys %$cb) {
721
722 while (my ($pkg, $cb) = each %$cb) {
723 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 967 my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
724 and last; 968 $retval ||= $retval_;
725 969
726 if ($@) { 970 if ($@) {
727 $TERM->ungrab; # better to lose the grab than the session 971 $TERM->ungrab; # better to lose the grab than the session
728 warn $@; 972 warn $@;
729 } 973 }
742 } 986 }
743 987
744 $retval 988 $retval
745} 989}
746 990
747sub exec_async(@) { 991sub SET_COLOR($$$) {
748 my $pid = fork; 992 SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
749
750 return
751 if !defined $pid or $pid;
752
753 %ENV = %{ $TERM->env };
754
755 exec @_;
756 _exit 255;
757} 993}
758 994
759# urxvt::term::extension 995# urxvt::term::extension
760 996
761package urxvt::term::extension; 997package urxvt::term::extension;
887 unless (${$_[0]}) { 1123 unless (${$_[0]}) {
888 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API"; 1124 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
889 } 1125 }
890} 1126}
891 1127
1128sub urxvt::anyevent::one_event {
1129 Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
1130}
1131
892package urxvt::term; 1132package urxvt::term;
893 1133
894=head2 The C<urxvt::term> Class 1134=head2 The C<urxvt::term> Class
895 1135
896=over 4 1136=over 4
899 1139
900# find on_xxx subs in the package and register them 1140# find on_xxx subs in the package and register them
901# as hooks 1141# as hooks
902sub register_package { 1142sub register_package {
903 my ($self, $pkg, $argv) = @_; 1143 my ($self, $pkg, $argv) = @_;
1144
1145 no strict 'refs';
1146
1147 urxvt::verbose 6, "register package $pkg to $self";
1148
1149 @{"$pkg\::ISA"} = urxvt::term::extension::;
904 1150
905 my $proxy = bless { 1151 my $proxy = bless {
906 _pkg => $pkg, 1152 _pkg => $pkg,
907 argv => $argv, 1153 argv => $argv,
908 }, $pkg; 1154 }, $pkg;
924hash which defines the environment of the new terminal. 1170hash which defines the environment of the new terminal.
925 1171
926Croaks (and probably outputs an error message) if the new instance 1172Croaks (and probably outputs an error message) if the new instance
927couldn't be created. Returns C<undef> if the new instance didn't 1173couldn't be created. Returns C<undef> if the new instance didn't
928initialise perl, and the terminal object otherwise. The C<init> and 1174initialise perl, and the terminal object otherwise. The C<init> and
929C<start> hooks will be called during this call. 1175C<start> hooks will be called before this call returns, and are free to
1176refer to global data (which is race free).
930 1177
931=cut 1178=cut
932 1179
933sub new { 1180sub new {
934 my ($class, $env, @args) = @_; 1181 my ($class, $env, @args) = @_;
935 1182
1183 $env or Carp::croak "environment hash missing in call to urxvt::term->new";
1184 @args or Carp::croak "name argument missing in call to urxvt::term->new";
1185
936 _new ([ map "$_=$env->{$_}", keys %$env ], @args); 1186 _new ([ map "$_=$env->{$_}", keys %$env ], \@args);
937} 1187}
938 1188
939=item $term->destroy 1189=item $term->destroy
940 1190
941Destroy the terminal object (close the window, free resources 1191Destroy the terminal object (close the window, free resources
942etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1192etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
943watchers (timers, io watchers) are still active. 1193watchers (timers, io watchers) are still active.
944 1194
1195=item $term->exec_async ($cmd[, @args])
1196
1197Works like the combination of the C<fork>/C<exec> builtins, which executes
1198("starts") programs in the background. This function takes care of setting
1199the user environment before exec'ing the command (e.g. C<PATH>) and should
1200be preferred over explicit calls to C<exec> or C<system>.
1201
1202Returns the pid of the subprocess or C<undef> on error.
1203
1204=cut
1205
1206sub exec_async {
1207 my $self = shift;
1208
1209 my $pid = fork;
1210
1211 return $pid
1212 if !defined $pid or $pid;
1213
1214 %ENV = %{ $self->env };
1215
1216 exec @_;
1217 urxvt::_exit 255;
1218}
1219
945=item $isset = $term->option ($optval[, $set]) 1220=item $isset = $term->option ($optval[, $set])
946 1221
947Returns true if the option specified by C<$optval> is enabled, and 1222Returns true if the option specified by C<$optval> is enabled, and
948optionally change it. All option values are stored by name in the hash 1223optionally change it. All option values are stored by name in the hash
949C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1224C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
950 1225
951Here is a a likely non-exhaustive list of option names, please see the 1226Here is a likely non-exhaustive list of option names, please see the
952source file F</src/optinc.h> to see the actual list: 1227source file F</src/optinc.h> to see the actual list:
953 1228
954 borderLess console cursorBlink cursorUnderline hold iconic insecure 1229 borderLess console cursorBlink cursorUnderline hold iconic insecure
955 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1230 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
956 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1231 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
957 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1232 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
958 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1233 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
959 tripleclickwords utmpInhibit visualBell 1234 transparent tripleclickwords utmpInhibit visualBell
960 1235
961=item $value = $term->resource ($name[, $newval]) 1236=item $value = $term->resource ($name[, $newval])
962 1237
963Returns the current resource value associated with a given name and 1238Returns the current resource value associated with a given name and
964optionally sets a new value. Setting values is most useful in the C<init> 1239optionally sets a new value. Setting values is most useful in the C<init>
973likely change). 1248likely change).
974 1249
975Please note that resource strings will currently only be freed when the 1250Please note that resource strings will currently only be freed when the
976terminal is destroyed, so changing options frequently will eat memory. 1251terminal is destroyed, so changing options frequently will eat memory.
977 1252
978Here is a a likely non-exhaustive list of resource names, not all of which 1253Here is a likely non-exhaustive list of resource names, not all of which
979are supported in every build, please see the source file F</src/rsinc.h> 1254are supported in every build, please see the source file F</src/rsinc.h>
980to see the actual list: 1255to see the actual list:
981 1256
982 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1257 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
983 borderLess color cursorBlink cursorUnderline cutchars delete_key 1258 borderLess color cursorBlink cursorUnderline cutchars delete_key
984 display_name embed ext_bwidth fade font geometry hold iconName 1259 display_name embed ext_bwidth fade font geometry hold iconName
985 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1260 imFont imLocale inputMethod insecure int_bwidth intensityStyles
986 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1261 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
987 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1262 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
988 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1263 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
989 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1264 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
990 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1265 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
991 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1266 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
992 shade term_name title transparent transparent_all tripleclickwords 1267 secondaryScreen secondaryScroll selectstyle shade term_name title
993 utmpInhibit visualBell 1268 transient_for transparent transparent_all tripleclickwords utmpInhibit
1269 visualBell
994 1270
995=cut 1271=cut
996 1272
997sub resource($$;$) { 1273sub resource($$;$) {
998 my ($self, $name) = (shift, shift); 1274 my ($self, $name) = (shift, shift);
1172 1448
1173Normally its not a good idea to use this function, as programs might be 1449Normally its not a good idea to use this function, as programs might be
1174confused by changes in cursor position or scrolling. Its useful inside a 1450confused by changes in cursor position or scrolling. Its useful inside a
1175C<on_add_lines> hook, though. 1451C<on_add_lines> hook, though.
1176 1452
1453=item $term->scr_change_screen ($screen)
1454
1455Switch to given screen - 0 primary, 1 secondary.
1456
1177=item $term->cmd_parse ($octets) 1457=item $term->cmd_parse ($octets)
1178 1458
1179Similar to C<scr_add_lines>, but the argument must be in the 1459Similar to C<scr_add_lines>, but the argument must be in the
1180locale-specific encoding of the terminal and can contain command sequences 1460locale-specific encoding of the terminal and can contain command sequences
1181(escape codes) that will be interpreted. 1461(escape codes) that will be interpreted.
1191Replaces the event mask of the pty watcher by the given event mask. Can 1471Replaces the event mask of the pty watcher by the given event mask. Can
1192be used to suppress input and output handling to the pty/tty. See the 1472be used to suppress input and output handling to the pty/tty. See the
1193description of C<< urxvt::timer->events >>. Make sure to always restore 1473description of C<< urxvt::timer->events >>. Make sure to always restore
1194the previous value. 1474the previous value.
1195 1475
1476=item $fd = $term->pty_fd
1477
1478Returns the master file descriptor for the pty in use, or C<-1> if no pty
1479is used.
1480
1196=item $windowid = $term->parent 1481=item $windowid = $term->parent
1197 1482
1198Return the window id of the toplevel window. 1483Return the window id of the toplevel window.
1199 1484
1200=item $windowid = $term->vt 1485=item $windowid = $term->vt
1206Adds the specified events to the vt event mask. Useful e.g. when you want 1491Adds the specified events to the vt event mask. Useful e.g. when you want
1207to receive pointer events all the times: 1492to receive pointer events all the times:
1208 1493
1209 $term->vt_emask_add (urxvt::PointerMotionMask); 1494 $term->vt_emask_add (urxvt::PointerMotionMask);
1210 1495
1496=item $term->focus_in
1497
1498=item $term->focus_out
1499
1500=item $term->key_press ($state, $keycode[, $time])
1501
1502=item $term->key_release ($state, $keycode[, $time])
1503
1504Deliver various fake events to to terminal.
1505
1211=item $window_width = $term->width 1506=item $window_width = $term->width
1212 1507
1213=item $window_height = $term->height 1508=item $window_height = $term->height
1214 1509
1215=item $font_width = $term->fwidth 1510=item $font_width = $term->fwidth
1245=item $env = $term->env 1540=item $env = $term->env
1246 1541
1247Returns a copy of the environment in effect for the terminal as a hashref 1542Returns a copy of the environment in effect for the terminal as a hashref
1248similar to C<\%ENV>. 1543similar to C<\%ENV>.
1249 1544
1545=item @envv = $term->envv
1546
1547Returns the environment as array of strings of the form C<VAR=VALUE>.
1548
1549=item @argv = $term->argv
1550
1551Return the argument vector as this terminal, similar to @ARGV, but
1552includes the program name as first element.
1553
1250=cut 1554=cut
1251 1555
1252sub env { 1556sub env {
1253 if (my $env = $_[0]->_env) {
1254 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env } 1557 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
1255 } else {
1256 +{ %ENV }
1257 }
1258} 1558}
1259 1559
1260=item $modifiermask = $term->ModLevel3Mask 1560=item $modifiermask = $term->ModLevel3Mask
1261 1561
1262=item $modifiermask = $term->ModMetaMask 1562=item $modifiermask = $term->ModMetaMask
1263 1563
1264=item $modifiermask = $term->ModNumLockMask 1564=item $modifiermask = $term->ModNumLockMask
1265 1565
1266Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1566Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1267AltGr), the meta key (often Alt) and the num lock key, if applicable. 1567AltGr), the meta key (often Alt) and the num lock key, if applicable.
1568
1569=item $screen = $term->current_screen
1570
1571Returns the currently displayed screen (0 primary, 1 secondary).
1572
1573=item $cursor_is_hidden = $term->hidden_cursor
1574
1575Returns whether the cursor is currently hidden or not.
1268 1576
1269=item $view_start = $term->view_start ([$newvalue]) 1577=item $view_start = $term->view_start ([$newvalue])
1270 1578
1271Returns the row number of the topmost displayed line. Maximum value is 1579Returns the row number of the topmost displayed line. Maximum value is
1272C<0>, which displays the normal terminal contents. Lower values scroll 1580C<0>, which displays the normal terminal contents. Lower values scroll
1292line, starting at column C<$start_col> (default C<0>), which is useful 1600line, starting at column C<$start_col> (default C<0>), which is useful
1293to replace only parts of a line. The font index in the rendition will 1601to replace only parts of a line. The font index in the rendition will
1294automatically be updated. 1602automatically be updated.
1295 1603
1296C<$text> is in a special encoding: tabs and wide characters that use more 1604C<$text> is in a special encoding: tabs and wide characters that use more
1297than one cell when displayed are padded with urxvt::NOCHAR characters 1605than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1298(C<chr 65535>). Characters with combining characters and other characters 1606characters. Characters with combining characters and other characters that
1299that do not fit into the normal tetx encoding will be replaced with 1607do not fit into the normal tetx encoding will be replaced with characters
1300characters in the private use area. 1608in the private use area.
1301 1609
1302You have to obey this encoding when changing text. The advantage is 1610You have to obey this encoding when changing text. The advantage is
1303that C<substr> and similar functions work on screen cells and not on 1611that C<substr> and similar functions work on screen cells and not on
1304characters. 1612characters.
1305 1613
1449where one character corresponds to one screen cell. See 1757where one character corresponds to one screen cell. See
1450C<< $term->ROW_t >> for details. 1758C<< $term->ROW_t >> for details.
1451 1759
1452=item $string = $term->special_decode $text 1760=item $string = $term->special_decode $text
1453 1761
1454Converts rxvt-unicodes text reprsentation into a perl string. See 1762Converts rxvt-unicodes text representation into a perl string. See
1455C<< $term->ROW_t >> for details. 1763C<< $term->ROW_t >> for details.
1456 1764
1457=item $success = $term->grab_button ($button, $modifiermask) 1765=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1458 1766
1767=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
1768
1459Registers a synchronous button grab. See the XGrabButton manpage. 1769Register/unregister a synchronous button grab. See the XGrabButton
1770manpage.
1460 1771
1461=item $success = $term->grab ($eventtime[, $sync]) 1772=item $success = $term->grab ($eventtime[, $sync])
1462 1773
1463Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or 1774Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1464synchronous (C<$sync> is true). Also remembers the grab timestampe. 1775synchronous (C<$sync> is true). Also remembers the grab timestamp.
1465 1776
1466=item $term->allow_events_async 1777=item $term->allow_events_async
1467 1778
1468Calls XAllowEvents with AsyncBoth for the most recent grab. 1779Calls XAllowEvents with AsyncBoth for the most recent grab.
1469 1780
1479=item $term->ungrab 1790=item $term->ungrab
1480 1791
1481Calls XUngrab for the most recent grab. Is called automatically on 1792Calls XUngrab for the most recent grab. Is called automatically on
1482evaluation errors, as it is better to lose the grab in the error case as 1793evaluation errors, as it is better to lose the grab in the error case as
1483the session. 1794the session.
1795
1796=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1797
1798=item $atom_name = $term->XGetAtomName ($atom)
1799
1800=item @atoms = $term->XListProperties ($window)
1801
1802=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1803
1804=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1805
1806=item $term->XDeleteProperty ($window, $property)
1807
1808=item $window = $term->DefaultRootWindow
1809
1810=item $term->XReparentWindow ($window, $parent, [$x, $y])
1811
1812=item $term->XMapWindow ($window)
1813
1814=item $term->XUnmapWindow ($window)
1815
1816=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1817
1818=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1819
1820=item $term->XChangeInput ($window, $add_events[, $del_events])
1821
1822Various X or X-related functions. The C<$term> object only serves as
1823the source of the display, otherwise those functions map more-or-less
1824directory onto the X functions of the same name.
1484 1825
1485=back 1826=back
1486 1827
1487=cut 1828=cut
1488 1829
1552 my ($self, $text, $cb) = @_; 1893 my ($self, $text, $cb) = @_;
1553 1894
1554 $self->add_item ({ type => "button", text => $text, activate => $cb}); 1895 $self->add_item ({ type => "button", text => $text, activate => $cb});
1555} 1896}
1556 1897
1557=item $popup->add_toggle ($text, $cb, $initial_value) 1898=item $popup->add_toggle ($text, $initial_value, $cb)
1558 1899
1559Adds a toggle/checkbox item to the popup. Teh callback gets called 1900Adds a toggle/checkbox item to the popup. The callback gets called
1560whenever it gets toggled, with a boolean indicating its value as its first 1901whenever it gets toggled, with a boolean indicating its new value as its
1561argument. 1902first argument.
1562 1903
1563=cut 1904=cut
1564 1905
1565sub add_toggle { 1906sub add_toggle {
1566 my ($self, $text, $cb, $value) = @_; 1907 my ($self, $text, $value, $cb) = @_;
1567 1908
1568 my $item; $item = { 1909 my $item; $item = {
1569 type => "button", 1910 type => "button",
1570 text => " $text", 1911 text => " $text",
1571 value => $value, 1912 value => $value,
1590 my $env = $self->{term}->env; 1931 my $env = $self->{term}->env;
1591 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1932 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1592 delete $env->{LC_ALL}; 1933 delete $env->{LC_ALL};
1593 $env->{LC_CTYPE} = $self->{term}->locale; 1934 $env->{LC_CTYPE} = $self->{term}->locale;
1594 1935
1595 urxvt::term->new ($env, $self->{term}->resource ("name"), 1936 urxvt::term->new ($env, "popup",
1596 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1937 "--perl-lib" => "", "--perl-ext-common" => "",
1938 "-pty-fd" => -1, "-sl" => 0,
1939 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1597 "--transient-for" => $self->{term}->parent, 1940 "--transient-for" => $self->{term}->parent,
1598 "-display" => $self->{term}->display_id, 1941 "-display" => $self->{term}->display_id,
1599 "-pe" => "urxvt-popup") 1942 "-pe" => "urxvt-popup")
1600 or die "unable to create popup window\n"; 1943 or die "unable to create popup window\n";
1601} 1944}
1606 delete $self->{term}{_destroy}{$self}; 1949 delete $self->{term}{_destroy}{$self};
1607 $self->{term}->ungrab; 1950 $self->{term}->ungrab;
1608} 1951}
1609 1952
1610=back 1953=back
1954
1955=cut
1956
1957package urxvt::watcher;
1958
1959@urxvt::timer::ISA = __PACKAGE__;
1960@urxvt::iow::ISA = __PACKAGE__;
1961@urxvt::pw::ISA = __PACKAGE__;
1962@urxvt::iw::ISA = __PACKAGE__;
1611 1963
1612=head2 The C<urxvt::timer> Class 1964=head2 The C<urxvt::timer> Class
1613 1965
1614This class implements timer watchers/events. Time is represented as a 1966This class implements timer watchers/events. Time is represented as a
1615fractional number of seconds since the epoch. Example: 1967fractional number of seconds since the epoch. Example:
1653Start the timer. 2005Start the timer.
1654 2006
1655=item $timer = $timer->start ($tstamp) 2007=item $timer = $timer->start ($tstamp)
1656 2008
1657Set the event trigger time to C<$tstamp> and start the timer. 2009Set the event trigger time to C<$tstamp> and start the timer.
2010
2011=item $timer = $timer->after ($delay)
2012
2013Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1658 2014
1659=item $timer = $timer->stop 2015=item $timer = $timer->stop
1660 2016
1661Stop the timer. 2017Stop the timer.
1662 2018
1691Set the callback to be called when io events are triggered. C<$reventmask> 2047Set the callback to be called when io events are triggered. C<$reventmask>
1692is a bitset as described in the C<events> method. 2048is a bitset as described in the C<events> method.
1693 2049
1694=item $iow = $iow->fd ($fd) 2050=item $iow = $iow->fd ($fd)
1695 2051
1696Set the filedescriptor (not handle) to watch. 2052Set the file descriptor (not handle) to watch.
1697 2053
1698=item $iow = $iow->events ($eventmask) 2054=item $iow = $iow->events ($eventmask)
1699 2055
1700Set the event mask to watch. The only allowed values are 2056Set the event mask to watch. The only allowed values are
1701C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed 2057C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1705 2061
1706Start watching for requested events on the given handle. 2062Start watching for requested events on the given handle.
1707 2063
1708=item $iow = $iow->stop 2064=item $iow = $iow->stop
1709 2065
1710Stop watching for events on the given filehandle. 2066Stop watching for events on the given file handle.
2067
2068=back
2069
2070=head2 The C<urxvt::iw> Class
2071
2072This class implements idle watchers, that get called automatically when
2073the process is idle. They should return as fast as possible, after doing
2074some useful work.
2075
2076=over 4
2077
2078=item $iw = new urxvt::iw
2079
2080Create a new idle watcher object in stopped state.
2081
2082=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
2083
2084Set the callback to be called when the watcher triggers.
2085
2086=item $timer = $timer->start
2087
2088Start the watcher.
2089
2090=item $timer = $timer->stop
2091
2092Stop the watcher.
2093
2094=back
2095
2096=head2 The C<urxvt::pw> Class
2097
2098This class implements process watchers. They create an event whenever a
2099process exits, after which they stop automatically.
2100
2101 my $pid = fork;
2102 ...
2103 $term->{pw} = urxvt::pw
2104 ->new
2105 ->start ($pid)
2106 ->cb (sub {
2107 my ($pw, $exit_status) = @_;
2108 ...
2109 });
2110
2111=over 4
2112
2113=item $pw = new urxvt::pw
2114
2115Create a new process watcher in stopped state.
2116
2117=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
2118
2119Set the callback to be called when the timer triggers.
2120
2121=item $pw = $timer->start ($pid)
2122
2123Tells the watcher to start watching for process C<$pid>.
2124
2125=item $pw = $pw->stop
2126
2127Stop the watcher.
1711 2128
1712=back 2129=back
1713 2130
1714=head1 ENVIRONMENT 2131=head1 ENVIRONMENT
1715 2132
1724 2141
1725=item >= 3 - script loading and management 2142=item >= 3 - script loading and management
1726 2143
1727=item >=10 - all called hooks 2144=item >=10 - all called hooks
1728 2145
1729=item >=11 - hook reutrn values 2146=item >=11 - hook return values
1730 2147
1731=back 2148=back
1732 2149
1733=head1 AUTHOR 2150=head1 AUTHOR
1734 2151

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